PDFVue is an online PDF viewer and editor.

[1] Features included viewing, commenting, annotations, page deletion or rotation, and adding fillable form fields to a PDF.

Supported browsers included Internet Explorer, Firefox, and Safari.

[2] A Firefox extension redirects the PDF, enabling viewing and annotation within the browser.

[4] The software has been renamed PDFzen, which was eventually acquired by Philipp Wagner and later merged with Converter.App.